Any card sent to the Graveyard is banished instead.
Rulings
Individual Card FAQs
When "Banisher of the Light" is destroyed it will be sent to the Graveyard. If "Banisher of the Light" and other monsters are destroyed simultaneously all monsters are sent to the Graveyard.
Effects that trigger when cards are sent to the Graveyard, such as "Sangan", "Witch of the Black Forest", "Mystic Tomato", "The Immortal of Thunder" and "Last Will", will not activate.
"Kuriboh" and "Thunder Dragon" can be discarded from your hand and activated while "Banisher of the Light" is on the field.
LIGHT|
Level 3|[ Fairy / Effect ]
ATK 100|
DEF 2000